Special Marine Warning Issued for Big Island Windward Waters Through 4:30 PM HST
This alert is no longer in effect.
NOAA issued it on April 6, 2026, 4 months ago. Warnings of this kind stay in effect for hours to a few days, so this page is a historical record of what was issued, not a current warning. For conditions where you are right now, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia).
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NWS Honolulu HI has issued a Special Marine Warning for Big Island Windward Waters due to a thunderstorm capable of producing waterspouts and 34-knot wind gusts.
Read this weather record in 30 seconds
- Record type
- Special Marine Warning
- Affected area
- Big Island Windward Waters, Hawaii
- Issued
- April 6, 2026
- Issuing authority
- NWS Honolulu HI
Marine notices apply to named waters or shoreline zones. They may not describe conditions on land, even when the nearest place name is the same.
Record status: historical. It was issued 4 months ago; use the issuing agency's live warning service for current conditions in Big Island Windward Waters, Hawaii.
Alert Details
The National Weather Service in Honolulu HI has issued a Special Marine Warning for the Big Island Windward Waters. This alert was issued following radar detection of a thunderstorm capable of producing hazardous conditions for mariners.
Affected Areas
The warning specifically impacts the Big Island Windward Waters. At 3:40 PM HST, the storm was located 8 nautical miles northwest of FAD Buoy HK, or approximately 10 nautical miles northeast of Ninole, moving northeast at a speed of 15 knots.
What You Should Do
Mariners are advised to take immediate safety precautions:
- Seek Safe Harbor: Move to a protected area or port immediately.
- Wear Life Jackets: Ensure all persons on board are wearing life jackets.
- Stay Low: Stay low or go below deck to protect against wind and hail.
- Prepare for Impact: Be ready for gusty winds, steep and fast-building seas, and blinding downpours.
Thunderstorms can produce sudden waterspouts that can easily overturn boats and create locally hazardous seas.
Expected Conditions
Based on radar observations, the following hazards are present:
- Waterspouts: Potential for sudden formation which can damage or overturn vessels.
- Wind: Wind gusts of 34 knots or greater.
- Hail: Small hail is possible.
- Seas: Briefly higher winds and suddenly higher waves are expected.
Timeline
The alert is effective immediately as of 3:41 PM HST and is currently set to expire at 4:30 PM HST on February 22, 2026.
Original source: NOAA Official Notice ↗
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